package com.usian.controller;

import com.usian.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.loadbalancer.LoadBalancerClient;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

@RequestMapping("/user")
@RestController
public class ConsumerController {
    //从Nacos注册中心获取服务端的ip、端口、要调用的服务
    @Autowired
    private LoadBalancerClient loadBalancerClient;

    //访问Rest服务的客户端
    @Autowired
    private RestTemplate restTemplate;

    @RequestMapping("/findUserById")
    public User findUserById(Integer id){

        //1. 找服务
        ServiceInstance instance = loadBalancerClient.choose("nacos-provider");
        //2. 拼接请求地址
        String url = "http://"+instance.getHost()+":"+instance.getPort()+"/user/findById/"+id;
        //3. 发起请求
        return restTemplate.getForObject(url,User.class);

    }

}
